(4Z)-4-[(4-Fluorophenyl)methylidene]-1,3-diphenyl-4,5-dihydro-1H-pyrazol-5-one CAS 39143-19-6
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 39143-19-6 |
| Molecular Formula | C22H15FN2O |
| Molecular Weight | 342.37 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(4Z)-4-[(4-Fluorophenyl)methylidene]-1,3-diphenyl-4,5-dihydro-1H-pyrazol-5-one (CAS 39143-19-6) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C22H15FN2O. Molecular weight: 342.37 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C22H15FN2O |
| Molecular Weight | 342.37 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1968 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
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- Methyl 2-((5-(3-(4-fluorophenyl)ureido)-1,3,4-thiadiazol-2-yl)thio)acetate (CAS 886937-14-0)
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Recommended Standards
- (2-((3R,5R)-3,5-Dihydroxycyclohexylidene)ethyl)diphenylphosphine oxide (CAS 883214-91-3)
- (E)-4-(4-(methylsulfonyl)piperazin-1-yl)-3-nitrobenzaldehyde O-methyl oxime (CAS 860650-10-8)
- 5-Cyclopropyl-N-((5-(furan-2-carbonyl)thiophen-2-yl)methyl)isoxazole-3-carboxamide (CAS 1797613-36-5)
- Ethyl 6-(methylamino)hexanoate (CAS 96311-62-5)
- Ethyl (S)-pyrrolidine-3-carboxylate (CAS 81049-27-6)
- 1-bromo-3-(2,2-dimethylpropoxy)-Benzene (CAS 528528-63-4)
- 5-Bromo-4-cyclohexylpyrimidine (CAS 941294-28-6)
- 3'-Chloro-4-fluoro-[1,1'-biphenyl]-3-carboxylic acid (CAS 1261933-47-4)
- (4-Bromo-3-(trifluoromethyl)phenyl)methanamine hydrochloride (CAS 1214331-03-9)
- Acetyl-Tau Peptide (273-284) amide trifluoroacetate salt (CAS 1684399-52-7)
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